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突發感覺性神經性聽力喪失之椎動脈血管杜卜勒分析

Doppler Analysis of Vertebral System in Patients with Sudden Sensorineural Hearing Loss

摘要


台大醫院耳鼻喉部共有40例診斷為突發感覺性神經性聽力喪失的病人,男19例,女21例,年齡分布從25歲至80歲,在住院期間接受腦血管杜卜勒超音波檢音,其中26例同時接受腦部磁振影像檢查。在40例突發感覺性神經性聽力喪常的病人中,9例左右椎動脈流速和低於每秒150毫升,被判斷為椎動脈流速減少。左右椎動脈流速和與聽力復原程度呈線性迴歸不相關性。26例同時接受腦部磁振影像的病人中,8例在腦幹部有梗塞性變化,與左右椎動脈流速和亦呈統計不相關性。本研究中,40例突發感覺性神經性聽力喪失的病八住院期間接受腦血管杜卜勒超音波檢查,所測得左右椎動脈流速和並不能預測突發感覺性神經性聽力喪常的預後,也不能預測腦部磁振影像檢查中腦幹部有否梗塞性變化。(中耳醫誌 1997;32:413-417)

並列摘要


There is still no consensus in the pathogenesis, treatment modality and prognosis of sudden sensorineural hearing loss (SNHL). Clinically, it is difficult to evaluate the microcirculation of inner ear tbut we can measure the blood flow velocity of vertebral system by Doppler sonography. There were forty patients with the diagnosis of sudden SNHL and they received Doppler study of vertebral system during their hospitalization. Twenty six patients also received head MRI during their hospitalization. Eight of them showed ischemic stroke of brain stem. In our experience, the sum of blood flow velocity of bilateral vertebral arteries is not statistically correlated to the hearing recovery. It is not correlated to the ischemic stroke of brain stem shown by head MRI either.

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